What Is a Motion to Strike Jury Instructions and When to Use It

You built a strong case. You gathered evidence, prepared witnesses, and framed every argument. Then the judge reads the jury instructions, and a single misstated legal standard threatens to sink the verdict. A motion to strike jury instructions is the tool that stops a flawed instruction before it reaches the jury. This guide explains what the motion does, the grounds that support it, the deadlines that govern it, and how a self-represented litigant drafts and files one correctly.

Jury instructions tell jurors how to apply the law to the facts. When a proposed instruction misstates an element, omits a defense, or confuses the burden of proof, the resulting verdict rests on a defective foundation. We walk through how instructions work in civil and criminal trials, how this motion differs from an objection and a motion in limine, the step-by-step drafting process, a worked example, common pro se mistakes, and how the rules shift across jurisdictions. We close with where to get court-ready drafting help.

Key Points

A motion to strike jury instructions asks the court to remove or correct a proposed instruction that misstates the law, omits a required element, confuses the jury, or injects bias, before the judge charges the jury. It preserves error for appeal under Federal Rule of Civil Procedure 51, Federal Rule of Criminal Procedure 30, and parallel state rules, and protects the verdict from reversal.

1. The motion targets defective jury instructions, such as a misstated burden of proof, an omitted element, or a confusing definition.
2. Federal Rule of Civil Procedure 51 and Federal Rule of Criminal Procedure 30 govern instruction objections and error preservation in federal court.
3. You must object on the record before the jury deliberates, or you forfeit the issue on appeal.
4. State and local rules set different deadlines and formats, so confirm the procedure in your own court.
5. A granted motion corrects the instruction; a denied motion, properly preserved, supports a later appeal.

What is a motion to strike jury instructions?

A motion to strike jury instructions is a formal request asking the court to remove or amend a proposed instruction that misstates the law, omits a required element, or risks misleading the jury. It differs from a casual objection because it states specific grounds and cites the controlling authority. The motion protects the fairness of the verdict.

A jury instruction is the statement a judge gives jurors on the legal rules they must apply to the evidence. When an instruction distorts those rules, the jury decides the case on a false premise. The motion asks the judge to strike the offending language and substitute a correct version.

In federal civil trials, the procedure flows from Federal Rule of Civil Procedure 51 (FRCP 51), which governs how parties request instructions, object to them, and preserve claimed errors for appeal. In federal criminal trials, Federal Rule of Criminal Procedure 30 (FRCrP 30) sets the parallel process. For a broader primer on the device across pleadings and trial, see our guide on what a motion to strike is and how to use it.

How do jury instructions work in a civil or criminal trial?

Jury instructions work as the judge's directions to jurors on the law, delivered after the close of evidence and closing arguments. They define each legal element, state the burden of proof, and explain how jurors weigh testimony and exhibits. Jurors must follow the instructions when they reach a verdict.

In a civil trial, instructions explain the preponderance of the evidence standard, meaning the jury finds a fact true when it is more likely than not. They define elements such as duty, breach, causation, and damages in a negligence case. A vague definition of proximate cause, for example, can send a jury in the wrong direction.

In a criminal trial, instructions state the beyond a reasonable doubt standard and define each element of the charged offense, plus any defense such as self-defense. Courts frequently draw from pattern instructions, such as circuit model criminal instructions, which judges adapt to the facts. Parties submit proposed instructions, the judge holds a charge conference, and disputes over wording get resolved on the record. Our jury instructions drafting service helps litigants prepare accurate proposals before that conference.

What are the grounds for a motion to strike jury instructions?

The grounds for a motion to strike jury instructions are a misstatement of the law, an omitted element or defense, a confusing or duplicative instruction, an instruction unsupported by the evidence, and language that injects bias or improperly comments on the facts. Each ground must be stated specifically and tied to authority.

A misstatement of law is the strongest ground. An instruction that lowers the burden of proof, misdefines an element, or contradicts a statute invites reversal because it corrupts the deliberation. An omitted element fails to require the jury to find something the law demands, such as intent in a fraud claim.

An unsupported instruction tells the jury about a theory no evidence supports, which confuses the issues. A confusing or argumentative instruction uses biased phrasing that favors one side, a pattern seasoned litigators watch for because the same legal rule can be written to lean toward the plaintiff or the defendant. State practice supplies parallel grounds. California Code of Civil Procedure section 436 authorizes striking improper matter, and California Rule of Court 3.1322 sets the format for such motions. For improper instructions in complex litigation, our team addresses striking improper jury instructions in class actions.

Motion to strike jury instructions vs. objection vs. motion in limine

A motion to strike jury instructions, a trial objection, and a motion in limine target different problems at different times. The motion to strike challenges a proposed instruction before the charge. An objection preserves error during trial. A motion in limine seeks a pretrial ruling to exclude evidence before the jury hears it.

A trial objection is the spoken, on-the-record statement that preserves a legal error for appeal. Under FRCP 51, you object to an instruction before the jury retires, stating the matter objected to and the grounds. A written motion to strike adds detail, cites authority, and gives the judge a chance to correct the instruction in advance.

A motion in limine operates earlier and on a different subject. It asks the court to rule that specific evidence, such as a prior conviction, stays out of the trial. The two devices work together, and litigants frequently file them as a package. We offer a motion to strike and motion in limine bundle for clients preparing for trial. A related device, a motion to clarify jury instructions, asks the court to fix ambiguity rather than remove language.

When should you file a motion to strike jury instructions?

File a motion to strike jury instructions at the charge conference, after both sides submit proposed instructions and before the judge reads the charge to the jury. Timing is critical, because an objection raised after deliberations begin is forfeited under FRCP 51 and most state rules.

The charge conference is the hearing where the judge and parties settle the final instructions. You raise your challenge there, on the record, so the judge can correct the instruction before jurors hear it. Early preparation strengthens your position, because the best litigators draft their desired instructions during discovery and shape the evidence around them.

State rules set their own deadlines. California Rule of Court 3.1322 requires a motion to strike part of a pleading within the time to plead, and instruction challenges at trial follow the charge-conference timeline. Confirm your court's local rules and standing orders, because judges frequently set instruction-submission deadlines days before trial. Waiting until the verdict almost always forfeits the claim.

How to draft and file a motion to strike jury instructions, step by step

Draft a motion to strike jury instructions by quoting the defective language, stating the specific defect, citing the controlling authority, and proposing a corrected instruction. File it before the charge conference and object on the record at the conference to preserve the issue for appeal.

1. Identify the defect by comparing the proposed instruction against the governing statute, pattern instruction, and case law.
2. Quote the exact language you ask the court to strike, numbered consecutively, as California Rule of Court 3.1322 requires for formatting.
3. State the ground plainly, such as misstated burden of proof or omitted element.
4. Cite the controlling authority before the argument, naming the rule, statute, or pattern instruction.
5. Propose a corrected instruction so the judge has a ready substitute.
6. File the motion under the court's deadline and serve all parties.
7. Object on the record at the charge conference, restating the grounds, to satisfy FRCP 51 or FRCrP 30.

A supporting memorandum strengthens the motion by developing the legal argument in detail. For complex filings, our attorneys prepare a motion to strike with a supporting memorandum tailored to your jurisdiction.

What happens when a motion to strike jury instructions is granted or denied?

When a motion to strike jury instructions is granted, the court removes or rewrites the offending instruction, and the jury receives a corrected charge that states the law accurately. When the motion is denied, the challenged instruction stands, and your on-the-record objection preserves the issue for appeal.

A granted motion protects the verdict by aligning deliberations with the correct legal standard. The judge strikes the flawed language, substitutes an accurate instruction, and the trial proceeds on a sound foundation. This outcome prevents the costly post-trial fight that follows a defective charge.

A denied motion is not the end. The preserved objection lets you argue on appeal that the instruction was erroneous and that the error affected your substantial rights. Appellate courts reverse when a faulty instruction likely changed the outcome. For a closer look at post-filing procedure, see our explanation of what happens when a motion to strike is granted.

A worked example of a motion to strike flawed jury instructions

Consider a civil negligence trial where the defendant's proposed instruction tells jurors the plaintiff must prove causation "beyond a reasonable doubt." That standard belongs to criminal law. The correct civil standard is a preponderance of the evidence. The plaintiff moves to strike the instruction.

The motion quotes the defective sentence verbatim. It states the ground: the instruction misstates the burden of proof and imposes a criminal standard on a civil claim. It cites the controlling authority for the preponderance standard and the circuit pattern civil instruction on causation.

The motion then proposes a corrected instruction: "The plaintiff must prove each element, including causation, by a preponderance of the evidence, meaning it is more likely true than not true." The judge grants the motion, strikes the criminal language, and reads the corrected charge. The plaintiff avoids a verdict built on an impossible standard and sidesteps a reversible error.

Common mistakes pro se litigants make with jury instruction challenges

Pro se litigants lose jury instruction challenges by objecting too late, stating vague grounds, failing to cite authority, and neglecting to propose a corrected instruction. Each error either forfeits the issue or gives the judge no reason to act. Precision and timing decide the outcome.

The most damaging mistake is waiting until after the jury deliberates. FRCP 51 forfeits any objection not raised before the jury retires, and appellate courts review a forfeited error only for plain error, a far harder standard. A second mistake is a general objection that says an instruction is "wrong" without naming the defect or the rule it violates.

A third mistake is offering no substitute. Judges adopt corrected language more readily when you hand them a clean, accurate version. A fourth mistake is ignoring local format rules, such as the requirement to quote the challenged language and number the specifications. Our flat-fee motion to strike service for pro se litigants prepares filings that avoid these errors.

How does jurisdiction change the rules for striking jury instructions?

Jurisdiction changes the governing rule, the deadline, the format, and the available grounds for striking jury instructions. Federal courts apply FRCP 51 and FRCrP 30. State courts apply their own civil and criminal procedure codes, pattern instructions, and local rules, which set different timelines and formatting requirements.

In federal court, the charge-conference procedure and the on-the-record objection requirement are uniform across districts, though local rules fix the instruction-submission deadline. State practice varies widely. California applies Code of Civil Procedure section 436 and Rule of Court 3.1322 to motions to strike, and courts use the Judicial Council civil and criminal pattern instructions.

Other states follow their own model instructions and deadlines, and some require written proposals days before trial. The grounds overlap, but the format, timing, and citations differ. Confirm the rule, deadline, and pattern instruction in your own court before filing. Our attorneys draft custom motion-to-strike templates tailored to your jurisdiction so the filing matches local requirements.

Where can pro se litigants and attorneys hire help to draft this motion?

Pro se litigants and attorneys can hire experienced legal professionals through LegalHusk to draft a court-ready motion to strike jury instructions. Our attorneys prepare jurisdiction-tailored motions, supporting memoranda, and corrected instructions, built to withstand challenge and filed under your deadline.

Self-represented litigants gain the most, because they rarely have access to the research tools and pattern-instruction libraries that shape a strong motion. We prepare the document, cite the controlling authority, and format it to your court's rules. Attorneys managing heavy caseloads rely on our drafting for overflow capacity and cost-effective support.

Where courtroom representation is relevant, it is available on a retainer basis, subject to the jurisdiction, its applicable rules, and the availability of a licensed attorney in that state. Using the drafting service by itself does not create an attorney-client relationship or constitute legal advice. Compare options in our breakdown of motion to strike cost and what drives the price, then contact LegalHusk to order your motion today.

Frequently Asked Questions

1. What are the grounds for a motion to strike?

The grounds for a motion to strike are redundant, immaterial, impertinent, or scandalous matter under Federal Rule of Civil Procedure 12(f), and, for jury instructions, a misstatement of law, an omitted element, a confusing instruction, or language unsupported by the evidence. Each ground must be stated specifically and supported by authority.

2. Can you provide an example of a motion to strike?

Yes. A plaintiff in a civil negligence trial moves to strike a proposed instruction that requires proof "beyond a reasonable doubt," because the correct civil standard is a preponderance of the evidence. The motion quotes the defective language, cites the pattern civil instruction, and proposes corrected wording.

3. Is a motion to strike a rule 12 motion?

Yes, a motion to strike part of a pleading is a Rule 12 motion, specifically under Federal Rule of Civil Procedure 12(f). A motion to strike jury instructions, by contrast, arises at trial under Rule 51, not Rule 12, because it targets the charge rather than a pleading.

4. Can I just say I don't want to do jury duty?

No. A jury summons is a court order, and ignoring it risks a fine or contempt. You request to be excused or to defer through the court's process, citing a recognized hardship. This differs entirely from a motion to strike, which challenges legal filings or instructions, not jury service.

5. What is the difference between a motion to strike and a demurrer?

A motion to strike removes improper matter from a pleading, such as redundant or scandalous allegations, while a demurrer challenges whether the pleading states a legally sufficient claim. In California, both are raised within the time to plead and heard together.

6. What happens when a motion to strike is granted?

When a motion to strike is granted, the court removes the challenged matter from the record. For jury instructions, the judge strikes the flawed language and reads a corrected charge, so the jury deliberates on an accurate statement of the law.

7. How late can you object to a jury instruction?

You must object before the jury retires to deliberate. Federal Rule of Civil Procedure 51 forfeits any objection raised after that point, leaving only plain-error review on appeal, which is far harder to win.

8. Do jury instructions affect the outcome of an appeal?

Yes. An erroneous instruction that likely changed the verdict is a common basis for reversal. Appellate courts examine whether the error affected a party's substantial rights, which makes a preserved, specific objection essential.

Conclusion

A motion to strike jury instructions protects your trial from a defective charge that can corrupt the verdict and trigger a costly appeal. Filed at the charge conference with specific grounds, controlling authority, and a corrected instruction, it keeps deliberations aligned with the correct law. For pro se litigants and attorneys alike, precision and timing decide whether the challenge succeeds or forfeits.

LegalHusk's attorneys prepare court-ready, jurisdiction-tailored motions built to withstand challenge, so you file on time and on point. Contact LegalHusk today to order your motion to strike jury instructions and strengthen your case before the jury hears a word.